Shark swimathon /

As members of a swim team do laps to qualify for swim camp, readers can practice subtracting two-digit numbers to see how many laps are left to go.

Bibliographic Details

Main Author:	Murphy, Stuart J., 1942-
Other Authors:	Avril, Lynne, 1951-
Format:	Book
Language:	English
Published:	New York : HarperCollins Publishers, [2001]
Edition:	1st ed.
Series:	Murphy, Stuart J., 1942- MathStart.
Subjects:	Subtraction > Juvenile literature. Subtraction.
Online Access:	Publisher description Contributor biographical information